GM1117S-ATA3T datasheet(8/15 Pages) GAMMA

Part #	GM1117S-ATA3T

Description	1A LOW DROPOUT PRECISION VOLTAGE REGULATOR

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Manufacturer	GAMMA [Gamma Microelectronics Inc.]

Direct Link	http://www.gammamicro.com.tw/

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8

GM1117S

1A LOW DROPOUT

PRECISION VOLTAGE REGULATOR

1

Electrical Characteristics (T

A = 25℃, unless otherwise noted)

Parameter

Symbol

Condition

Min

Typ

Max

Unit

IOUT =10mA, VIN = 5V

1.238

1.250

1.262

Reference

Voltage

GM1117S-Adj

VREF

10mA

≤ IOUT ≤ 1.0A,

2.65V

≤ VIN ≤ 10V

1.225

1.250

1.275

V

IOUT =10mA, VIN = 3.3V

1.782

1.800

1.818

GM1117S-1.8

10mA

≤ IOUT ≤ 1.0A,

3.3V

≤ VIN ≤ 10V

1.764

1.800

1.836

IOUT =10mA, VIN = 4V

2.475

2.500

2.525

GM1117S-2.5

10mA

≤ IOUT ≤ 1.0A,

4V

≤ VIN ≤ 10V

2.450

2.500

2.550

IOUT =10mA, VIN = 4.8V

3.267

3.300

3.333

GM1117S-3.3

10mA

≤ IOUT ≤ 1.0A,

4.8V

≤ VIN ≤ 10V

3.234

3.300

3.366

IOUT =10mA, VIN = 6.5V

4.950

5.000

5.050

Output Voltage

GM1117S-5.0

VOUT

10mA

≤ IOUT ≤ 1.0A,

6.5V

≤ VIN ≤ 10V

4.900

5.000

5.100

V

Line Regulation

∆VOI

IOUT =10mA,

1.5V

≤ VIN - Vout ≤ 10V

0.04

0.2

%

Load Regulation

∆VOL

VIN = VOUT + 1.5V

10mA

≤ IOUT ≤ 1.0A

0.2

0.4

%

Dropout Voltage

∆V

IOUT =1A

1.3

1.5

V

Current Limit

ICL

VIN = VOUT + 1.5V

1.0

1.5

2.0

A

Quiescent Current (Fixed Output

Voltage Versions)

IQ

VIN = VOUT + 1.5V

10mA

≤ IOUT ≤ 1.0A

3.5

10

mA

Adjust Pin

Current

GM1117S-Adj

IAdj

IOUT =10mA,

2.75V

≤ VIN ≤ 7V

40

90

µA

Temperature Coefficient

VIN = VOUT + 1.5V

IOUT =10mA

0.005

%/℃

Thermal Regulation

TC

TA=25°C, 30ms pulse

0.003

%/W

Ripple Rejection

RA

VIN = VOUT + 1.5V

IOUT =1A

60

65

dB

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